Global Patent Index - EP 0081684 A1

EP 0081684 A1 19830622 - Drive for machines, especially industrial sewing machines.

Title (en)

Drive for machines, especially industrial sewing machines.

Title (de)

Antrieb für Arbeitsmaschinen, insbesondere Industrienähmaschinen.

Title (fr)

Entraînement pour machines de travail, notamment pour machines à coudre industrielles.

Publication

EP 0081684 A1 19830622 (DE)

Application

EP 82110437 A 19821111

Priority

DE 3145232 A 19811113

Abstract (en)

[origin: US4583028A] Drive mechanism for working machines, especially industrial sewing machines, including a speed-controlled DC motor without a collector, the windings of this motor being supplied by way of a power stage having a full bridge circuit, actuated in dependence on the rotor position of the motor. A safety monitoring circuit responding to overcurrent is associated with the power stage in order to block the full bridge circuit in case of overload. The drive mechanism is furthermore provided with a microprocessor control for the positioning and ancillary functions of the driven working machine.

IPC 1-7

H02P 6/02; H02P 7/00

IPC 8 full level

D05B 69/26 (2006.01); H02P 6/06 (2006.01); H02P 6/34 (2016.01); H02P 7/00 (2006.01)

CPC (source: EP US)

H02P 6/34 (2016.02 - EP US)

Citation (search report)

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0081684 A1 19830622; EP 0081684 B1 19870930; BR 8206600 A 19831004; DE 3145232 A1 19830601; DE 3277431 D1 19871105; DK 505882 A 19830514; JP S5889296 A 19830527; US 4583028 A 19860415

DOCDB simple family (application)

EP 82110437 A 19821111; BR 8206600 A 19821112; DE 3145232 A 19811113; DE 3277431 T 19821111; DK 505882 A 19821112; JP 19685682 A 19821111; US 67483984 A 19841126